Complexity in consumer systems is growing exponentially, creating new challenges in sensing, data processing, and system intelligence. Leveraging advanced sensor and signal processing technologies, we are addressing these challenges with innovative approaches. We are looking for an energetic Senior Firmware Engineer who can bridge these technologies with novel software solutions, algorithms, and machine learning primitives.

Required skills:

• Ability to work on communication stacks, in-depth domain knowledge on Bluetooth Classic, Bluetooth LE, Bluetooth Audio, Multipoint, Auracast, Controller stack protocols, BLE profiles/Services.
• Ability to work on system level architecture; ability to create and maintain system level solutions comprised of state-of-the-art hardware and software components and provide documentation for our products.                                   
• Development experience with functions and protocols such as TWS Role switch, fast pairing, voice assistants, Conformance and Teams certifications.
• Ability to understand complex customer application ecosystems and integrate our product offerings.
• Prior experience in developing and debugging all aspects of system software. This includes understanding overall system performance from both a hardware and software perspective.

Qualifications:

• BS or MS in Electrical or Computer Engineering or related field
• 5+ years of Industrial experience in firmware development
• Strong C/C++ and Python programming skills
• Strong knowledge of digital signal processing (DSP) and algorithm development experience
• Experience with communication stacks including Bluetooth classic, BLE USB, SDIO WiFi, Bluetooth & WiFi interoperability.
• Strong knowledge of Tensilica HiFi, Kalimba DSP cores and Bluetooth Audio Frameworks
• Hands on experience with integrating, building, and testing of multi-threaded applications.
• Experience with embedded real-time operating systems
• Experience with SCM tools (GIT, SVN, Clearcase, Perforce, etc.)
• Strong analytical and problem-solving abilities
• Experience with defect tracking tools (Jira, Bugzilla, etc.)
• Strong working knowledge of a software development process (e.g., Agile, Waterfall)
• Application of Object-Oriented concepts and methodologies
• Strong system level knowledge in audio, video and TWS domains

What we offer: 

• Dynamic and supporting international teams.
• Regular assessments and performance reviews. You will have the opportunity for promotion, bonuses and a raise in accordance with the pace at which you develop and your performance. 
• Remote, hybrid or office work.
• 20-25 vacation days per year.
• Equipment for work, laptop and all necessary additions.
• Access to training and courses.
• Private health insurance.
• FIT Pass card for many sports facilities. 

About Fellow

We believe that the act of making should be meaningful and fulfilling, done with intention and precision. Fellow makes beautifully functional tools for any kitchen, designed in San Francisco and used around the world. When the simple motions of life become small moments of joy, that's Everyday Magic.™

We’re looking for a Senior Embedded Software Engineer - Hardware Control Systems to help develop and optimize firmware for our hardware products.

This role is based in our office in Vilnius, Lithuania and is required to have an in office presence. 

Who You Are

You are an experienced embedded engineer who enjoys working close to hardware and solving real-world control problems. You have strong experience developing firmware for microcontroller-based systems and are comfortable working with physical process control, particularly in systems involving motors, power electronics, or similar hardware.

You enjoy collaborating with hardware, product, and firmware teams to bring reliable, high-performance consumer hardware to life.

What You’ll Do

• Develop and maintain embedded firmware for our connected consumer hardware products.
• Design and implement firmware for microcontroller-based systems (primarily STM32), working close to the hardware to ensure reliable and efficient operation.
• Develop software for physical process control systems, including applications involving motors, actuators, sensors, and power electronics.
• Work closely with Electronics Engineers to understand hardware capabilities and constraints, including peripherals, memory usage, and system timing.
• Participate in board bring-up, debugging, and hardware integration, ensuring firmware interacts correctly with hardware components.
• Implement and optimize motor control algorithms and control loops where applicable.
• Collaborate with Software Engineers to integrate firmware with higher-level system software and external communication interfaces.
• Contribute to architecture discussions, firmware design, code reviews, and testing processes.
• Debug system-level issues across prototype and production environments, including timing, performance, and hardware interaction problems.
• Help improve firmware reliability, maintainability, and performance through thoughtful design and testing.

Qualifications

• BS or higher in Computer Science, Software Engineering, Computer Engineering, Physics, or equivalent hands-on experience.
• 5+ years of embedded firmware development experience in real-world hardware products.
• Strong proficiency in C/C++ for embedded systems.
• Required experience with STM32 microcontrollers, including their toolchains, peripherals, and debugging workflows.
• Experience developing firmware for physical process control systems, such as motors, actuators, power electronics, battery charging systems, or similar applications.
• Strong understanding of microcontroller peripherals, interrupts, timing, and low-level firmware design.
• Experience with bare-metal embedded development.
• Experience with board bring-up, hardware debugging, and integration with electronics systems.
• Strong analytical and debugging skills with the ability to diagnose complex hardware-software interactions.

Preferred Qualifications

• Experience with RTOS-based systems (such as FreeRTOS).
• Experience with ESP32 microcontrollers.
• Experience with STMicroelectronics Motor control library 
• Experience implementing motor control systems, including familiarity with techniques such as Field-Oriented Control (FOC), trapezoidal control, or similar approaches.
• Experience working on consumer hardware products.
• Experience implementing UI or display interfaces (e.g., LVGL) is a plus but not required.

Why You’ll Love This Role

• A creative, fast-moving environment where ideas turn into action
• Competitive compensation including employee equity plan
• Generous paid time off plan
• Medical/dental/vision insurance
• Better Yourself Wellness credit & Better Your Community donation matching
• Monthly Fitness Stipend
• Summer Fridays
• Paid Parental Leave
• Generous discount on Fellow products
• Best coffee anywhere

Salary Range:  €6,500- €7,000 Monthly 

Our highest goal at Fellow is creating a safe, inclusive, and rewarding environment where everyone can bring their whole selves to work and thrive. We are committed to building diverse teams and strongly encourage people from underrepresented groups, including but not limited to women, people of color, LGBTQIA+ individuals, people with disabilities, members of ethnic minorities, foreign-born residents, and veterans to apply. 

Fellow is an equal opportunity employer. Applicants will not be discriminated against because of race, color, creed, sex, sexual orientation, gender identity, gender expression, age, religion, national origin, citizenship status, disability, ancestry, marital status, veteran status, medical condition or any protected category prohibited by local, state or federal laws.